feat: 支持自托管的 remote-control-server (#214)

* feat: 支持自托管的 remote-control-server (#214)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

packages/remote-control-server/web/sse.js

@@ -0,0 +1,53 @@
+/**
+ * Remote Control — SSE Connection Manager (UUID-based auth)
+ */
+import { getUuid } from "./api.js";
+import { refreshLoadingActivity } from "./render.js";
+
+let currentEventSource = null;
+let currentSSESessionId = null;
+let onEventCallback = null;
+
+export function connectSSE(sessionId, onEvent, fromSeqNum = 0) {
+  disconnectSSE();
+  currentSSESessionId = sessionId;
+  onEventCallback = onEvent;
+
+  const uuid = getUuid();
+  let url = `/web/sessions/${sessionId}/events?uuid=${encodeURIComponent(uuid)}`;
+
+  const es = new EventSource(url);
+  currentEventSource = es;
+
+  // Track the last sequence number we've seen to avoid duplicates
+  let lastSeenSeq = fromSeqNum;
+
+  es.addEventListener("message", (e) => {
+    try {
+      const data = JSON.parse(e.data);
+      // Skip events we've already rendered from history
+      if (data.seqNum !== undefined && data.seqNum <= lastSeenSeq) return;
+      if (data.seqNum !== undefined) lastSeenSeq = data.seqNum;
+      onEventCallback?.(data);
+      refreshLoadingActivity();
+    } catch {
+      // ignore parse errors
+    }
+  });
+
+  es.addEventListener("error", () => {
+    // EventSource auto-reconnects
+  });
+}
+
+export function disconnectSSE() {
+  if (currentEventSource) {
+    currentEventSource.close();
+    currentEventSource = null;
+    currentSSESessionId = null;
+  }
+}
+
+export function getCurrentSSESessionId() {
+  return currentSSESessionId;
+}